Ask Coulombs Law question free
×
Coulombs Law Free Doubts and Solutions
CBSE - XII Science - Physics - Electric Charges and Fields
calculate the distance between two protons if the repulsive force acting between them is equal to weight a proton
Asked by rishabhverma895334
1st March 2024,
7:24 AM
CBSE - XII Science - Physics - Electric Charges and Fields
electric charges
Asked by rameshsanju123
8th February 2024,
8:45 PM
CBSE - XII Science - Physics - Electric Charges and Fields
explain coulambs law give unit and dimensions of electrostatics constant and coulambs law in vector form with superposition principle
Asked by bhatig9772
9th January 2023,
6:48 PM
CBSE - XII Science - Physics - Electric Charges and Fields
calculate column b force between alpha particles separated by a distance of 3.2 into 10 to the power minus 15 m in air
Asked by bhagawan5225
6th May 2022,
5:58 AM
CBSE - XII Science - Physics - Electric Charges and Fields
Two similar spheres having +Q and -Q charges at a kept distance . F force act on between two.if at the middle of the two sphere another similar sphere having +Q is kept then it experience a force in magnitude and direction as
Asked by nonuhasan2
28th November 2021,
9:43 PM
CBSE - XII Science - Physics - Electric Charges and Fields
what is dielectric current
Asked by komalshakatawat18
19th September 2021,
5:47 PM
CBSE - XII Science - Physics - Electric Charges and Fields
There is one charged tiny spherical oil drop and the magnitude of electric field intensity at a point on its surface is E. If n such drops are combined to make a single drop then what will be the net electric field intensity at a point on the surface of the bigger spherical drop. Assume that charge is uniformly distributed over the volume of oil drop.
Asked by jangraarti2
31st July 2021,
7:12 PM
CBSE - XII Science - Physics - Electric Charges and Fields
the force between two charges at distance r is f what will be the force between these charges if the distance between them is doubled and charges are placed in a medium of dielectric constant 10 ?
Asked by aditya.loya9821
23rd July 2021,
6:44 PM
CBSE - XII Science - Physics - Electric Charges and Fields
A point charge qa = + 100 c is placed at point a (1, 0, 2) m and another point charge qb = +200c isplaced at point b (4, 4, 2) m. Find :(i) magnitude of electrostatic interaction force acting between them(ii) find a f(force on a due to
Asked by raghavsumit9690
10th July 2021,
1:30 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Two identical metal spheres have charges +15μC and +25μC areseparated by a distance. If the spheres are first brought into contact and then separated to the original distance, then the ratio of the new force to the previous force is
Asked by mohammedmuhsin786786
1st July 2021,
8:33 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Two equal small spheres each weighing 1g , hang by two equal silk threads from the same point. The spheres are charged when in contact and come to rest with their centres 2cm apart and 20cm vertically below the point of support. Find the charge on each sphere.
Asked by ishantkundu31
14th June 2021,
5:00 PM
CBSE - XII Science - Physics - Electric Charges and Fields
two bodies of masses m,2m and charges q and 2q ,q is hanged with two strings of equal length 'l' as shown. which one of the following is correct.
Asked by pushpakumari291279
25th May 2021,
7:26 AM
CBSE - XII Science - Physics - Electric Charges and Fields
staate columbs law in vectoe form and explain it
Asked by naikmanjuank
12th September 2020,
8:28 AM
CBSE - XII Science - Physics - Electric Charges and Fields
What is coulombs law
Asked by adityatembhurne10
29th June 2020,
11:48 AM
CBSE - XII Science - Physics - Electric Charges and Fields
Q - 10
Asked by majethiyarishat9566.12sdatl
28th May 2020,
5:15 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Q - 14
Asked by majethiyarishat9566.12sdatl
28th May 2020,
5:12 PM
CBSE - XII Science - Physics - Electric Charges and Fields
A certain charge Q is divided into two parts q and Q − q, which are then separated by a certain distance. What must q be in terms of Q to maximize the electrostatic repulsion between the two charges?
Asked by rushabhjain.avv
5th May 2020,
9:44 PM
CBSE - XII Science - Physics - Electric Charges and Fields
pls solve this
Asked by suchananag2002
30th April 2020,
8:22 PM
CBSE - XII Science - Physics - Electric Charges and Fields
what is the force brtween two small charged spheres having charges of 2x10power-7coulomb and 3x10power-7 colomb placed 30cm part in air?
Asked by moinkhan440455
6th April 2020,
1:38 PM
CBSE - XII Science - Physics - Electric Charges and Fields
A particle of mass 9x10 ^-5 g is kept over a large horizontal sheet of charge density 5x10^-5Cm-2 ? What charge should be to the particle, so that if released it does not fall? in this question solution how we got to know that charge must be positive
Asked by govtsecschoolnayaganv051
6th July 2019,
5:39 PM
CBSE - XII Science - Physics - Electric Charges and Fields
2 identical point charges q each are kept 2 metre apart in air. A third point charge Q of unknown magnitude and sign is placed on the line joining the charges such that the system remains in equilibrium find the position and nature of Q
Asked by vk335548
5th March 2019,
10:25 PM
CBSE - XII Science - Physics - Electric Charges and Fields
A) Two charges +4esu and +9 esu are situated at a distance of 10 cm . A unit charge is situated at a point on the line joining the charges. At what point the unit charge experiences a force which is (a) equal and opposite,(b)equal and in the same direction? B) Two conductors have resistance R1 and R2 at 0°C. Their temperature coefficients of resistances are a1 and a2 respectively. Show that the temperature coefficients of their equivalent resistances when joined in series and in parallel are respectively (R1a1+R2a2)/(R1+R2) and (R1a2+R2a1)/(R1+R2)
Asked by mridulabarua05
7th February 2019,
9:21 AM
CBSE - XII Science - Physics - Electric Charges and Fields
A spherical ball of mass m with charge q can revolve in a vertical plane at the end of string of length l. At the centre of revolution there's a second ball with a charge identical in sign and magnitude to that of the revolving ball. What maximum horizontal velocity must be imparted to the ball in the lowest position to enable it to make a full revolution?
Asked by mridulabarua05
5th February 2019,
5:15 PM
CBSE - XII Science - Physics - Electric Charges and Fields
state coulomb's law?
Asked by Shyam
17th December 2018,
12:14 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Coulomb's law for electrostatic force between two point charges and newton's laws for gravitational force between two stationary point masses both have inverse square dependence on distance between charges/masses. Compare strength of ratio for an electron and proton Two protons
Asked by atul_rclal
26th August 2018,
10:51 AM
CBSE - XII Science - Physics - Electric Charges and Fields
State Coulomb’s law and express it in vector form.
Asked by asraneaf5588
22nd June 2018,
8:31 PM
CBSE - XII Science - Physics - Electric Charges and Fields
why don`t we consider signs of chages while substituting in the coloumb`s law?
Asked by my3shyll
10th April 2018,
8:35 PM
CBSE - XII Science - Physics - Electric Charges and Fields
prove gauss law using coulomb law
Asked by haroonrashidgkp
31st March 2018,
12:08 PM
CBSE - XII Science - Physics - Electric Charges and Fields
plot a graph showing the variation in coulombs force f versus 1/r2 where r is the distance between two chargesof each pair of (1mc , 2mc) (2mc,-3mc)?
Asked by vasturushi
25th December 2017,
7:23 PM
CBSE - XII Science - Physics - Electric Charges and Fields
two point charges q1 nad q2 are placed at a distance r1 and r2 respectively in an external electric field . obtain an expression for total work done in assembling this configuration?
Asked by vasturushi
25th December 2017,
7:05 PM
CBSE - XII Science - Physics - Electric Charges and Fields
two equal balls having equal positive charge are suspended by two insulating strings of equal length . what would be the effect on the force when the plastic sheet inserted between the two?explain.
Asked by vasturushi
25th December 2017,
6:46 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Two charges +10 μC and -10 μC are held 2 cm apart. Calculate the electric field at a point on the equatorial line at a distance of 50 cm from the centre of the dipole.
Asked by rraj.15266
16th December 2017,
8:18 PM
CBSE - XII Science - Physics - Electric Charges and Fields
How is working principle of xerox machine is related to Coulomb's Law?
Asked by vasturushi
5th June 2017,
2:25 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Q)
Asked by araima2001
4th May 2017,
10:21 AM
CBSE - XII Science - Physics - Electric Charges and Fields
Q) how to solve (b) part of this question plz.. kindly explain this....
Asked by araima2001
29th April 2017,
8:09 AM
CBSE - XII Science - Physics - Electric Charges and Fields
can u please provide chapterwise 2013-16 board question cbse.pls.or else provide it such a way that everryone can use.
Asked by Yash
12th April 2017,
8:19 PM
CBSE - XII Science - Physics - Electric Charges and Fields
please upload the imp problems of all the chapters in physics
Asked by geethapai2004
16th September 2016,
5:52 AM
CBSE - XII Science - Physics - Electric Charges and Fields
The electric force on a point charge situated on the axis of short dipole is F. If the charge is shifted along the axis to double the distance , the electric force will be
1.4F
2.F/2
3.F/4
4.F/8
Asked by dilipdevesh1170
10th June 2016,
12:55 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Five charges each of magnitude 10 μC are placed in a line at x = 0, x = 2 cm, x = 4 cm, x = 8 cm and x = 16 cm. Find the force experienced by the charge placed at x = 0 cm.
Asked by Topperlearning User
5th May 2016,
5:40 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Express forces between multiple charges in the vector form.
Asked by Topperlearning User
5th May 2016,
5:40 PM
CBSE - XII Science - Physics - Electric Charges and Fields
There is a gravitational force of attraction between the Earth and the Moon. We need to balance this force by placing equal charges on both of them. What should be the value of these charges which balances the gravitational force of attraction? (ME = 6 × 1024 kg and MM = 7 × 1022 kg)
Asked by Topperlearning User
5th May 2016,
5:40 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Two identically charged particles are separated by a distance of 4 Å. What is the magnitude of charge on each if the Coulomb repulsive force on each of them is 5.1 × 10−9 N?
Asked by Topperlearning User
5th May 2016,
5:40 PM
CBSE - XII Science - Physics - Electric Charges and Fields
maam it'´ samuel moses here whatever question u explained at the last of module 2 of coulombs law given by www.topperlearning.com i could not catch it up so can u explain it more in a simpler way...??
Asked by Samuel
28th January 2016,
8:06 PM
CBSE - XII Science - Physics - Electric Charges and Fields
is the permittivity changes with the material or remain constant value?
Asked by Aysha
22nd June 2015,
5:25 PM
CBSE - XII Science - Physics - Electric Charges and Fields
what is the negative and positive charge in cup of water
Asked by Farooq Ahmad Shah
10th June 2015,
12:14 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Two identical balls each having a charge 2 X 10^-7c and a mass of 100g are suspended from a common point by two insulating string each 50cm long. The balls are held at asepration 5cm apart and then released .Find(a) the components of the resultant force on it along and perpendicular to the string.(b) the tension in the string (c) the acceleartion of one of the balls. (d) the electric force on one of the charged balls.
Asked by Amrit
24th April 2015,
12:30 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Name the theorem which enables us to calculate electrostatic force in a collection of point charges.
Asked by Topperlearning User
17th April 2015,
10:22 AM
CBSE - XII Science - Physics - Electric Charges and Fields
Two point charges 3 μC and + 7μC repel each other with a force of 12 N. If each is given an additional charge -5 μC, what will be the new force between them?
Asked by Topperlearning User
17th April 2015,
10:09 AM
CBSE - XII Science - Physics - Electric Charges and Fields
Two similar and equally charged metal spheres A and B repel each other with a force of 3 10-6 N. A third identical uncharged sphere C is touched with A and then placed at the mid point between A and B. calculate the net electric force on C.
Asked by Topperlearning User
17th April 2015,
10:08 AM
CBSE - XII Science - Physics - Electric Charges and Fields
What will be the nature of force between B and C if A and B repel each other while A and C attract each other?
Asked by Topperlearning User
17th April 2015,
10:00 AM
CBSE - XII Science - Physics - Electric Charges and Fields
What is magnitude and unit of permittivity of free space?
Asked by Topperlearning User
17th April 2015,
10:00 AM
CBSE - XII Science - Physics - Electric Charges and Fields
The vector form of coulomb law gives 
. What does it means?
. What does it means?
Asked by Topperlearning User
17th April 2015,
9:54 AM
CBSE - XII Science - Physics - Electric Charges and Fields
What will be the coulomb force between two charges, when the distance between them is reduced to half?
Asked by Topperlearning User
17th April 2015,
9:51 AM
CBSE - XII Science - Physics - Electric Charges and Fields
In electrostatic, what do you mean by the point charge?
Asked by Topperlearning User
17th April 2015,
9:34 AM
CBSE - XII Science - Physics - Electric Charges and Fields
Give Coulomb's law in vector form. What is the significance of expressing it in the vector form?
Asked by Topperlearning User
17th April 2015,
9:34 AM
CBSE - XII Science - Physics - Electric Charges and Fields
On 5 august i had asked a question. I want to know about the apparatus i should use to make that project better. Please also tell me about the setup for the project by the help of a figure (with labels of the materials used, For example: Plastic rings). This is because i had made the project but it is not working so well.
I will be highly obliged. I hope i have not troubled you.
Asked by shaktiisgreat000
11th August 2014,
2:39 PM
CBSE - XII Science - Physics - Electric Charges and Fields
I am asked to make a model in physics. I have an idea, please tell me would it work or not.
It is:
I have thought that if i give negative charge to two a metal plates such that it one metal plate has breadth double of the other. Then, if i take the metal plate with smaller width over the metal plate with larger width and fix the latter metal plate on an insulating material then according to coulomb's law the former plate will be lifted upwards due to the force of replulsion between the two plates.
Will it work or there is some problem with it. If any please tell me about it and suggest a way to resolve the problem.
I will be obliged.
Asked by shaktiisgreat000
5th August 2014,
8:06 PM
CBSE - XII Science - Physics - Electric Charges and Fields
A non conducting rod of length l pivoted at its centre with a weight w at a distance X from LHS. At the ends of the rod are attached small conducting spheres with charges q and 2q which lie at distance H from fixed charges Q. What is the distance X.
Asked by NAKSHATRA
25th July 2014,
8:07 AM
CBSE - XII Science - Physics - Electric Charges and Fields
Define permittivity of free space.
Asked by Akshay Hemke
13th July 2014,
12:30 PM
CBSE - XII Science - Physics - Electric Charges and Fields
please give me derivation of coulombs law in detail.
Asked by shivamthetrisal
6th April 2014,
11:11 PM
